History of Astronomy |
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Page 1
... effect as a principle that seems to dominate our present universe , as a rule for pre- dicting the course of events , and as a guide to the choice of a course of action . This idea of cause and effect is the most potent factor in ...
... effect as a principle that seems to dominate our present universe , as a rule for pre- dicting the course of events , and as a guide to the choice of a course of action . This idea of cause and effect is the most potent factor in ...
Page 2
... effect which now seem to us absurd , let us be tolerant , and gratefully acknowledge that these astrologers , when they suggested such " working hypo- theses , " were laying the foundations of observation and deduction . If the ancient ...
... effect which now seem to us absurd , let us be tolerant , and gratefully acknowledge that these astrologers , when they suggested such " working hypo- theses , " were laying the foundations of observation and deduction . If the ancient ...
Page 20
... effects of precession of the equinoxes . ( 1 ) At about the date when the Great Pyramid may have been built y Draconis was near to the pole , and must have been used as the pole - star . In the north face of the Great Pyramid is the ...
... effects of precession of the equinoxes . ( 1 ) At about the date when the Great Pyramid may have been built y Draconis was near to the pole , and must have been used as the pole - star . In the north face of the Great Pyramid is the ...
Page 36
... effect that a similar occurrence had upon Hipparchus 1,700 years before . He felt it his duty to catalogue all the principal stars , so that there should be no mistake in the future . During the construction of his catalogue of 1,000 ...
... effect that a similar occurrence had upon Hipparchus 1,700 years before . He felt it his duty to catalogue all the principal stars , so that there should be no mistake in the future . During the construction of his catalogue of 1,000 ...
Page 55
... effect ought to be a rotation of the earth's axis over a conical surface in space , exactly as the axis of a top describes a cone , if the top has a sharp point , and is set spinning and displaced from the vertical . He actually ...
... effect ought to be a rotation of the earth's axis over a conical surface in space , exactly as the axis of a top describes a cone , if the top has a sharp point , and is set spinning and displaced from the vertical . He actually ...
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Common terms and phrases
accurate observations Airy astro Astronomer Royal Astronomia Nova astronomical units attraction axis bright calculations Cape Cassini catalogue centre century comet compute Copernicus diameter discovered discovery earth eclipse epicycles equatoreal error excentric explain fact fixed stars Galileo Greenwich Halley heavenly bodies heavens heliometer Hipparchus Huggins hydrogen hypothesis instruments Johann Kepler John Herschel Jupiter Jupiter's Kepler Laplace Lick Observatory light line of apses line of sight lunar Mars mathematical mean distance mean motion measured Mercury meteor method miles a second moon moon's nebulæ Newton Observatory orbit parallax perihelion period photographic physical planet planetary pole position predicted proper motion proved Ptolemy R. S. Phil records refractor retrograde retrograde motion revolution revolve round ring rotation round the sun satellites seems showed Sirius solar system spectra spectroscope spectrum spots stellar sun-spots sun's surface supposed tables telescope theory tion Trans Tycho Brahe Uranus velocity Venus Verrier zenith